Sterols: isolation from a blue-green alga.
A crystalline mixture of sterols was isolated from the filamentous blue-green alga Phormidium luridum. The mixture consisted of unsaturated 24-ethylcholesterols possessing Delta(7)-, Delta(5,7)-, and Delta(5)-bonds together with their Delta(22)-derivatives and a small amount of cholesterol. The major component was 24-ethyl-Delta(7)-cholestenol. Squalene and phytol were also evident.
D002784:Cholesterol; D002849:Chromatography, Gas; D003460:Crystallization; D056890:Eukaryota / Q000032:analysis*; D013057:Spectrum Analysis; D013185:Squalene / Q000032:analysis; D013261:Sterols / Q000032:analysis*; D013729:Terpenes / Q000032:analysis; D014466:Ultraviolet Rays
D013261:Sterols; D013729:Terpenes; D013185:Squalene; D002784:Cholesterol